Year In Review.

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Newton’s Laws of Motion Quiz Review Answers

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Presentation transcript:

Year In Review

Chemical Bonding Main Concepts: Follow the octet rule, 8 valence electrons make atoms happy. Metals (less than 4 lose) Non-Metals (more than 4 gain) (4 can lose or gain) 3 Types of Bonds Covalent (non-metal + non-metal) Ionic (metal + non-metal) Metallic (metal + metal)

Radioactivity Main Concepts Fusion is when nucleus’s come together, Fission is when a nucleus splits. Half-Life is the amount of time it takes for a nucleus to break down. It is used to determine how old something is by Carbon-14 Dating Radioactive Particles Alpha (cannot go through paper) Beta (cannot go through bone) Gamma (can go through almost any material, can damage cells)

GAS LAWS Main Concepts Boyles Law-Relationship between volume and pressure with a constant temperature. As volume increases, pressure decreases and visa versa. Charles Law-Relationship between volume and temperature with a constant pressure. As temperature increases volume increases and visa versa.

Mixtures Heterogeneous Homogenous Suspensions Settles out after a while Large particles If shaken, light cannot shine through. Solutions Does not settle out Smallest Particles Light can shine though Colloids Only settles out after a long time Medium sized particles Light cannot shine through

Pressure Laws Bernoulli’s Principle Pascal’s Principle an increase in a fluid’s speed creates a pressure decrease and a decrease in a fluid’s speed creates a pressure increase. if pressure is exerted on a fluid, this pressure will be distributed evenly in all of the fluid.

Chemical Reactions Main Concepts 4 Types of Reactions Synthesis A + B  AB Decomposition AB  A + B Single Replacement A + BC  AB + C Double Replacement AB + CD  AD + CB

Archimedes' Principal the upward buoyant force that is exerted on a body immersed in a fluid, whether fully or partially submerged, is equal to the weight of the fluid that the body displace.

Newton’s Laws Newton’s 1st Law An object in motion remains in motion and an object at rest remains at rest unless acted on by an outside force. Newton’s 2nd Law (F=ma) The acceleration of an object as produced by a net force is directly proportional to the magnitude of the net force, in the same direction as the net force, and inversely proportional to the mass of the object. Newton’s 3rd Law For every action there is an equal and opposite reaction.